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Projectile
| Question | Answer |
|---|---|
| Vertical and horizontal motion are __________________ of each other. | independent |
| If a bullet were fired at the same height a bullet is dropped they hit the ground at the _______________ time. | same |
| The only force that is acting on a projectile is ____________. | gravity |
| Projectiles travel in the the shape of a ______________. | Parabola |
| No ______________forces act on projectiles. | Horizontal |
| The horizontal velocity of a projectile is ___________ meaning it never changes its value. | Constant |
| What is the value of the vertical acceleration in projectiles? | 9.8 m/s^2 |
| The vertical velocity of a projectile ___________by 9.8 m/s^2 each second. | changes |
| Time will be ____________for objects launched or dropped from the same height. | the same |
| Gravity causes ______________________acceleration. | downward |
| Horizontal motion is consistent with Newton's first Law, the Law of _____________. | inertia |
| Dx refers to the _______________________distance. | horizontal |
| Dy refers to the _______________________distance. | vertical |
| When objects fall downward, 9.8 m/s^2 is negative and so is the value for _______________. | distance |
| A cannonball is launched at 20 m/s, what is the velocity in the x direction (dx) when it hits the ground? | 20 m/s |
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NISD Physics
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